Donut
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City Theatrical Donuts are used in the color frame slot of an ellipsoidal reflector spotlight to sharpen gobo projections. Similar to the way the human eye sharpens focus when it squints, a donut reduces the aperture and sharpens the output of the fixture. There is some reduction in brightness to achieve this increase in sharpness but this is often a tradeoff that designers are willing to make.
| ColorSource Spot Jr. Donut |
5.45" |
5.45" |
1.97" |
2618 |
| S4, SL, SH, PC* (3 3/16" center hole) |
6 1/4” |
6 1/4” |
3 3/16” |
2250 |
| S4, SL, SH, PC* (2 1/2" center hole) ** |
6 1/4” |
6 1/4” |
2 1/2" |
2260 |
| 6” Ellipsoidal, S4 Zoom |
7 1/2” |
7 1/2” |
3” |
2200 |
| New! 7.5" with 2.5" Aperture |
7 1/2” |
7 1/2” |
2 1/2” |
2201 |
| New! 7.5" with 3.5" Aperture |
7 1/2” |
7 1/2” |
3 1/2” |
2202 |
| New! 10" Donut |
10” |
10” |
4” |
2218 |
| S4 10°, SL 10° |
12” |
12” |
6” |
2252 |
| S4 5° |
14” |
14” |
7” |
2251 |
| SL 5° |
16” |
16” |
7” |
2258 |
| New! 17.5" Donut |
17 1/2” |
17 1/2" |
10” |
2259 |
| S4 Mini |
2.76" |
2.76" |
2.3" |
2575 |
| 125mm |
125mm |
125mm |
81mm |
2208 |
| 185mm |
185mm |
185mm |
81mm |
2210 |
*Source Four, Strand SL, Shakespeare, Pacific (19-50°)
**Smaller aperture provides shaper image but less brightness.
Features:
- Used to help bring templates into perfect sharpness
- Durable black powdercoat finish
- Fabricated from light gauge steel
Downloads:
New! Beam Control Accessory Sizing Chart for ETC Standard EDLT and XDLT Lenses
Donut 3 3/16" Center Hole (P/N 2250)
Source Four Lens Adapter Short (P/N 5416) With Donut